If you want to remove the stock airbox and MAF, you would have to convert to a different metering system with the use of aftermarket electronic components. Its doable, but probably a ways down the road in your modification plan. Don't think of the car like an n/A car, there are plenty of things you can do to make better use of the air that you are already taking in, rather than supplying the turbo more fresh air. Read and learn about boost controllers, AFC's, injectors, bolt on turbo upgrades, intercoolers & piping.